Power Supply; Checking Battery Status - Circutor MI-5500e Manual De Uso

3. Power supply

Internal rechargeable 12 V - 2.3 Ah sealed lead acid.

3.1. Checking battery status

Battery measurement can be performed without interrupting high-voltage
generation, which will provide a better evaluation of the battery status, by
pressing the battery check  key during the measurement. So, the
battery test is performed under actual consumption conditions and, for
long lasting measurements, (i.e. Polarization Index), the evolution of
battery status can be checked without affecting the measurement. The
meter pointer should stop over the blue zone. If the pointer stops over the
red zone this means that the battery is discharged and shall be charged.
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